olemus
OSI mudeli lülikihi (kihi 2) alumine alamkiht:
- jaotab pakettide edastuse ühist füüsilist meediumi
mitme arvuti vahel, igal neist on oma MAC-aadress
- annab adresseerimis- ja pääsumehhanismi
- levinuim protokoll on Ethernet

piltlikult
https://i.ytimg.com/vi/2Q13ZoSQOzY/hqdefault.jpg

https://slideplayer.com/slide/8132476/25/images/3/Various+physical+layer.jpg

ülevaateid
https://www.slideshare.net/DIKSHA_LAHRANI/mac-sub-layer

http://ecomputernotes.com/computernetworkingnotes/communication-networks/describe-the-mac-layer-protocols

http://www.cs.unibo.it/~lbedogni/files/vario/802.15.4-summary.pdf

http://www.ieee802.org/3/as/public/0503/4d0_1_CMP.pdf

https://www.youtube.com/watch?v=aG5rO6sck1Q

turvalisus
https://www.slideshare.net/MarcAndreHeroux/ethernet-33769988

https://arxiv.org/pdf/1501.02601.pdf